Tractor



. L. STARR TRACTOR 'ied April 29, 6 Sheets-Sheet 2 IN VEN TOR.

@SCAR l.. STARR Aug. l 8, l 936.

Q. L. STARR TRACTOR 6 Sheds-Sheet 3 Filed April 29., 1933 INVENTOR.

' 05cm? L. .STARR A TTORI.`

O. E... STARR Aug. 18 S. y

TRACTOR NORA/f' 6 Sheets-Sheet 5 lmlmllllm H Nm. .QWWWWI n a m mIHM mwINVENTOR se-AR l... 5 TARA ATToRzf.`

o. l.. STARR Aug.' 18, 1936.

TRACTOR Filed April 29, 1933 O. L. STARR Aug. 18, 1936.

TRACTOR Filed April 29, 1953 6 Sheets-Sheet 6 i JNVENToR.

OSCAR L. STARR :EI --j-E-- Z ATToRNlf.

Patented Aug. 18, 1936 UNITED STATES TRACTOR Oscar L. Starr, Mission SanJose, Calif., assignor to Caterpillar Tractor Co., San Leandro, Calif.,a corporation of California Application April 29,

21 Claims.

The present invention relates to draft vehicles, such as tractors, andmore particularly to the provision of drawbar means therefor. Inoperation, when a tractor is pulling a draft vehicle, the

' dr'aft connection is under tension and hence tends to maintain itselfin a straight line, whereby the greatest advantage can be obtained froma free lateral swinging drawbar. However, in backing the draft vehicleor in case the draft vehicle is f going down-hill so that the drawn loadtends to push the draft vehicle, the draft connection is undercompression, and if a free lateral swinging drawbar is used, tends tobuckle. When this I condition obtains, the draft force cannot be appliedat the most advantageous angle and the drawn vehicle sometimes causesthe tractor to turn, rather than the tractor controlling movement of thedrawn vehicle. If a fixed drawbar is used, certain advantages areobtained in backing or down-hill operations, but the advantages of afree lateral swinging drawbar during pulling of the drawn vehicle arelost. The present invention providesA a drawbar which has a free lateralswinging movement when the drawn vehicle is being pulled, and is fixedin position when the drawn vehicle is being pushed, i. e., when thetractor is backing, or when the tractor is going down-hill so that thedrawn load tends to place the drawbar under compression.

It is an object of the invention to provide a self-centering drawbar fora draft vehicle.

It is an object of the invention to provide a tractor having 'a4 drawbarwhich is placed automatically in a xed position when the tractor isbacking, or when the drawn load tends to place the drawbarundercompression.

Another object of the Ainvention is to provide ii'ieans for positioningthe drawbar of a tractor in fixed position during backing operation ofthe tractor, or when the drawn load tends to place the drawbar undercompression.

Another'object of the invention is to provide a tractor having a drawbarwhich is movable from a free lateral swinging position to a fixedposition.

Another object of the invention is to provide a tractor having a drawbarwhich is movable from a free lateral swinging position to a fixedposition, and means for yieldably resisting movement .of the drawbarfrom either of said positions to the other.

lll'

Another object of the invention is to provide a tiori, and means forcushioning movement of the' 1933, serial No. 668,599

(ol. aso-sas) drawbar from one of said positions to the other.

Another object of the invention is to provide a tractor including meansfor mounting the drawbar thereof for free lateral swinging movementunder a load placing tension thereon, and means 5 conditioned by theplacing of compression on the drawbar for preventing such lateralswinging movement.

Another object of theinvention is to provide cam means for positioningthe drawbar of the 10 tractor in a fixed position. y

Another object of the invention is to provide hydraulic means forpositioning the drawbar of a tractor in fixed position.

Another object of the invention is to provide a 15 tractor drawbarmovable from a free lateral swinging position to a fixed position, andmeans aligned with said drawbar in its central position for cushioningmovement thereof.

Another object of the invention is to provide .30 a tractor drawbarmovable from a free lateral swinging position to a fixed position, andmeans oscillatable with the drawbar for cushioning movement thereof fromone of said positions to the other.

Another object of the invention is to provide a tractor drawbar movablefrom a. free lateral swinging position to, a xed position, and spacedcushioning means arranged to either side of the drawbar for yieldablyresisting movement thereof 30 from either of said positions to theother. p

Another object of the invention is to provide the drawbar of a tractorwhich'is movable from a free lateral swinging position to a fixedposition, means for yieldably resisting movement of 35 said drawbar fromeither of said positions to the other, and means responsive to operationof said cushioning means to maintain the drawbar in its fixed position.

Another object of the invention is to providea free lateral swingingdrawbar for a tractor, and means for maintaining said drawbar in a fixedposition.

Another object of the invention is to provide a free lateral swingingdrawbar for a tractor, and controllable means for moving the drawbar toa fixed position.

Other objects will appear as the description progresses.

Description of figures Figs. 1-6 illustrate the preferred form of theinvention.

Fig. 1 isa side elevation of a tractor embody-v transmission case.

Fig.4isasectionontheline4-4inll'ig.3.

Fig. 5 is a section on the line 3-3 in Fig. 3.Fig.6isasectionontheline3-3inllig.3. Figs. I-9 illustrate a second formof the invention.

Fig. 'l is a plan view of the drawbar, the tractor transmission casebeing indicated in phantom lines.

Fig. 8 is a longitudinal, vertical section taken through thelongitudinal center line of the transmission case.

Fig. 9 is a section on line 3 3 in Fig. 8.

Figs. 10-12 are diagrammatic views illustrating other forms of theinvention.

Description of mechanism The first form of the invention, illustrated inFigs. 1-6, is disclosed as embodied in a tractor of the track-type,including main frame or body portion I3 (Fig. l) comprising thetransmission case, supported upon a pair of endless track mechanismsOperation of the tractor is controlled through steering clutch controllevers I2, gear shift lever i3 and brake pedals i4 at the operator'sstation. rearwardly of power plant i3. The drawn vehicle can be of anysuitable type of machine and is shown as a road grader, which includesframe Il having rear supports I3 and front supports I3. Draft pole 2| ofthe drawn vehicle is pivotally connected by pin 22 to drawbar 23 of thetractor.

The drawbar is mounted for free lateral swinging movement in onerelatively adjusted position with respect to the tractor when pullingthe draft vehicle, and upon reverse movement of the tractor or placingof compression on the drawbar, the drawbar is moved relative to thetractor to a fixed position to facilitate maneuvering of the vehicletrain. To accomplish this purpose, drawbar 23 (Figs. 2 and 3) is pivotedabout pin 23, mounted in fork end 2l of piston rod 23. Rollers 23 on therespective ends of said pin 23 travel in guideways 3| (Figs. 3 and 4) inbracket 32. Said bracket 32 is secured to pads 33 (Fig. 5), integralwith transmission case I3, by screws 34 passing through flanges 33 ofsaid bracket 32 and having threaded engagement in pads 33. 'Saidguideways 3| extend along the longitudinal center line of the tractor sothat the pivot point of the drawbar is guided for movement along thisline. It is seen therefore that the drawbar is mounted for endwisemovement with respect to transmission case i3.

Cam means are provided for relatively adjusting the drawbar with respectto the tractork from free lateral` swinging position to a fixed positionduring relative endwise movement thereof with respect to the tractoroccurring when the drawbar is placed under compression by relativemovement between the tractor and the drawn load. Said means comprisesvertically spaced plates li (Figs. 1-3) spaced apart by plates 42lsecured therebetween by bolts 43. Plates 4| are mounted on transmissioncase I3 by brackets 43, being positioned partly beneath saidtransmission case ill and extending rearwardly thereof. Plates 4| (Figs.2 and 3) are similar and each is provided with opposite oonverging camsurfaces 4l at the rear, which sro adapted to be engaged by rollers 43mounted in opposite pairs of spaced ears 43 integral with drawbar 23.Upon placing of compression on li the drawbar caused either by rearwardmovement of the tractor or by the load tending to push the tractordown-hill, said cam surfaces 4 1 are engaged by rollers l43 if drawbar23 is displaced from its central position and serve as means forrelatively moving the drawbar with respect to the tractor from its freelateral swinging position to its fixed position, the pivot point thereofbeing moved forwardly along the longitudinal center line of the tractor.Dotted line position A (Fig. 2) of drawbar' 23 shows the drawbar in itsextreme left-hand position, and position B shows said drawbar in itsextreme right-hand position. When compression is placed on the drawbar,the drawbar is moved 20 from either of positions A or B, or anyintermediate position, to position C, the fixed position thereof. Inthis position. plates 4i prevent lateral swinging movement thereof.

Cushioning means are provided fol yieldsbly 25 resisting movement of thedrawbar fromits free lateral swinging position to its iixed position.or, vice versa. Piston rod 23 (Fig. 3) extends within cylinder 3| andhas piston 32 threaded thereon within said cylinder. Said cylinder 3i isiilled with a suitable iluid adapted to resist movement of piston 32therein, said piston 32 being apertured at 33 to permit passage of thefluid from one side of the piston to the other. Said cylinder 3| ismounted on transmission case i0 which is provided with integral pads fortransmitting draft forces from the transmission case to the cylinderwhich transmits such forces through piston 32 and rod 23 to drawbar 23.The rear wall of cylinder 3i has rectangular flange 33 (Figs. 2 and 3),the top portion of which engages pad 31 (Figs. 3 and 5) integral withtransmission case I3, the lower portion of said flange 33 being securedto flange 33 of bracket 32 by screws 33.

Adjacent its front end, said cylinder 3i is provided with laterallyextending bracket portion 3i having its ends extending beyond the sideof the cylinder proper (Fig. 2), and being Joined thereto by flanges 32(Fig. 6). Said bracket 3| is seated in padv 33 integral withtransmission case I3, said pad having arcuate extension 34 engaging thefront face of bracket portion 3| and flanges 32. Bracket 3l is securedto pad 33 by screws 33. Thus it is seen that cylinder 3| is positionedbetween integral pads or extensions of the transmission case providing asimple and sturdy mounting therefor. As the drawbar moves relative tothe tractor from its free lateral swinging position to its fixedposition, or, vice versa, piston 32 is moved 00 forwardly or rearwardlyin cylinder 3|, the duid in said cylinder yieldably resisting suchmovement. Said cylinder and piston also serve 'as means for limitingendwise movement of the drawbar.

'I'hus it is seen that the drawbar is mounted for free lateral swingingmovement under a load placing tension thereon, and is automaticallyplaced in a fixed position under loads placing compression. thereon.Plates 4| not only provide cam 70 means to center and maintainV thedrawbar in its fixed position, but also provide a support to saiddrawbar preventing vertical movement thereof.

The second form of the invention is illustrated in Figs. 7-9, beinggenerally similar to that form u first described. In the second form ofthe invention, the pivot point of the drawbar is fixed, the means forcushioning movement of the drawbar from one of its endwise displacedpositions on the ,tractor to the other, pivoting therewith. Drawbar 8|(Figs. 7 and 8) is provided at its front end with rollers 82 adapted tocooperate with cam surfaces 83 of plates 84 mounted on transmission case|8 by brackets 86. The above described cam means are similar inconstruction and operation to those described in connection with thefirst form of the invention.

Said drawbar 8| is provided with piston rod portion 81 at the front endthereof, having piston 88 threaded thereon within cylinder 89, saidpiston being apertured at 9| to permit passage of the fluid in cylinder89 from one side of said piston 88 to the other during reciprocation ofsaid piston within the cylinder. Said cylinder 89 is pivotally mountedon transmission case I8 and provides the pivot point for the drawbar. Atits top, cylinder 89 has circular plate portion 92 engaging the bottomface of pad 93 of transmission case I8, central cylinder extension 94(Figs. 8 and 9) of plate portion 92 being disposed within cylindricalrecess 96 in pad 93. Split ring 91 (Figs. 7-9) is secured to pad 93 byscrews 98 and has fiange 99 engaging beneath the outer edge of plateportion 92 to secure cylinder 89 in place on crankcase 18. Pad 93 (Figs.7 and 8) has arcuate extension |88 extending' downwardly between theends of ring 81 and engaging plate portion 92.

From the foregoing description, it is seen that cylinder 89 is mountedfor oscillation on the transmission case about the axis of cylindricalextension 94, such axis coinciding with the axis of pivotal movement ofthe drawbar. It is to be noted that the effective length of the drawbarvaries as it moves from its free lateral swinging position to its fixedposition.

Fig. illustrates diagrammatically a third form of the invention. In thisform of the invention, drawbar |86 is pivoted at |81 to piston rod |88having solid piston |89 mounted thereon within cylinder Said piston rod|88 and cylinder may be mounted on the tractor as shown in the form ofthe invention illustrated in Figs. 16. Hydraulic means are provided forautomatically moving the drawbar to a xed central position whencompression is placed thereon. Similar cylinders ||2 are disposed onopposite sides of drawbar |86, said cylinders being mounted in anyconvenient manner at the rear end of the transmission case. Eachcylinder 2 has solid piston I I3 placed therein, and piston rods I4extending inwardly from cylinders I2 have rollers ||6 at their innerends. Said rollers II6 'are adapted to contact the opposite sides ofdrawbar |86 to move it to a central positionin a manner about to bedescribed.

Each cylinder I|2 has conduits II1, ||8 opening into the respective endsthereof, and extending therefrom, and opening into the respective endsof cylinder I. Cylinders I I, I I2 and conduits I|1, ||8 are filled witha suitable uid, the combined capacity of cylinders I|2 equalling thecapacity of cylinder Drawbar |86 is shown in full lines in Fig. 10 inits free lateral swinging position, piston |89 contacting the rear endwall of cylinder With the drawbar in this position, piston rods I4 areretracted and respective pistons ||3 are substantially in contact withthe outer end walls of respective cylinders ||2. The above describedposition of the pistons obtains in all laterally displaced positions ofthe drawbar,

the outermost positions thereof being illustrated in dotted lines inFig. 10. When the drawbar is moved forwardly of the tractor upon theinitial placing of compression thereon, piston |89 in cylinder forcesthe fluid in said cylinder through 5 conduits ||1 to' respectivecylinders II2, the fluid.

in cylindersV I I2 being forced through conduits I I8 into cylinder I.Forcing of the fluid from cylinder I I I to respective cylinders I I2moves pistons ||3 into contact with the respective inner end l0 walls ofcylinders ||2,'piston rods ||4 being projected to the dotted linepositions shown in Fig. 10, rollers ||6 contacting the sides of drawbar|88 providing cam surfaces cooperating with rollers ||6 to center thedrawbar. The parts are main- 15 tained in this position as long as thedrawbar is under compression, the system being substantially solid withfluid.

Thus it is seen that in this form of the invention, automatic means areprovided for moving the drawbar to a fixed position upon placing ofcompression forces' on the drawbar, and that cushioning means areprovided for yieldably resisting movement of the drawbar from its freevlateral swinging position to its fixed position, and vice versa.

Fig. 11 illustrates diagrammatically a fourth form of the invention. Inthis form of the invention, manually controlled power operated means areprovided for positioning and maintaining the drawbar in a xed positionwhile it is under compression. v

Drawbar |3| is pivoted at |32 on the transmission case in any suitablemanner. Similar cylinders |33 are disposed to either side of drawbar 35|3|, said cylinders being similar to cylinders ||2 shown in Fig. 10, andeach having a piston |34, piston rod |36, associated therewith. Rollers|31 on the respective inner ends of piston rod 36 are adapted to contactdrawbar |3| to position 40 and maintain said drawbar in a fixed positionas indicated in the dotted line positions of rods |36 and rollers |31.

Hydraulic means are provided for projecting piston rods |36 inwardly tocenter the drawbar. 45 Said means includes supply tank |4| from whichfluid is drawn through conduit |42 by pump |43. 'Ihe fluid from pump |43may take either of two courses, the first being through conduit |44 andby-pass conduit |45, having suitable by-pass valve |46 placed therein,to conduit |42. 'Ihe second course extends through conduit |44, conduit|41 to valve |48, and in the illustrated position of the valve, throughpassage |49 therein, to conduits |58 and |5| opening into respective in-55 ner walls of cylinders |33. With valve |48 in this position and thefluid being forced by the pump through conduits |58, |5I, pistons I 34are held against the outer end walls of cylinders |33 and piston rods|36 are in retracted position whereby 60 drawbar |3| can swing freely.During movement of piston |34 to the positions illustrated, the fluidpreviously in cylinders |33 is expelled therefrom through respectiveconduits |52, |53, through passage |54 of valve |48 and conduit |56 65to tank |4I. Contro! handle |51 is in its righthand position for thisvalve setting.

When handle |51 is in its central position, passages |49 and |54 ofvalve |48 do not communicate with any of the conduits leading to saidvalve, and operation of the pump can be stopped. piston rods |36 beingmaintained in adjusted position. When handle |51 is in its left-handposition, passage |49 connects conduit 41 to conduits |52, |53 wherebypiston rods are moved 75 thereoffillustrated to .prevent lateralswinging movement. If the drawbar is in a laterally displaced position,one of the sides thereof provides a cam surface cooperating with aroller to move the drawbar to its fixed position. During this operation,passage |54 connects conduits Ill, ill toconduit |56 to provide forreturn of the fluid expelled from cylinders ill to tank Ill. It is to benoted that pivot |32 for drawbar |3| serves to prevent damage to theparts when forces on drawbar III change from tension to compression orvice versa. Pivot |32, therefore, corresponds broadly to the cushioningmeans illustrated in the above described modifications in which thedrawbar has longitudinal aswell as oscillatory movement.

Fig. 12 illustrates a fifth form of the invention which is substantiallysimilar to -the form illustrated in Figs. 1-6, drawbar Ill and plates|12 being similar to drawbar 2l and plates 4|, and similarly mounted. Toconserve space, the cushioning means is provided in the form of a pairof cylinders disposed to either side of the drawbar and connected to thedrawbar for vsimultaneous movement therewith. Yoke |13 is pivoted todrawbar |1| at |14, and laterally extendling arms |16 thereof havepiston rods |11 pivotally connected thereto at |18. Each piston rod |11extends within cylinder |19, and has piston IBI mounted thereon similarto piston 52. The operation of the self-centering drawbar disclosed inFig. 12 is identical with that disclosed in Figs. 1-6 and is notdescribed in detail. It is to be noted that by employing the yoke andplacing a vpair of cylinders parallel and extending back along thedrawbar, a substantial saving in space can be made both in length and indepth.

It is to be noted that in all forms of the invention, the drawbar ismounted for free lateral swinging movement, means being provided tocondition the drawbar for operationin a fixed position when compressionis placedlthereon. 'Ihe conditioning means in each form includes meansspaced to either side of the drawbar and adapted forcontact therewith tomove the drawbar to its fixed position.

I, therefore, claim as my invention:

1. In a tractor, a drawbar, mounting means therefor providing a free,lateral swinging positionl for said drawbar, and a fixed positiontherefor, and means cushioning movement of said drawbar from one of saidpositions to the other.

2. In a tractor, a frame, and drawbar means on said frame, including adrawbar having relative longitudinal movement with respect to saidframe, means for mounting said drawbar for free lateral swingingmovement in one longitudinally displaced position thereof, means adaptedto prevent swingng movement of said drawbar in another longitudinallydisplaced position thereof, and means yieldably resisting longitudinalmovement of said drawbar, said movement resisting means and said framehaving inter-engaging portions.

3. In a tractor, a drawbar, movable means associated therewith, andmeans responsive to movement of said drawbar to move said movable meansinto engagement therewith to prevent swinging movement thereof.

4. In a tractor, a drawbar having lateral swinging movement, movablemeans associated therewith, and power-operated means selectivelyoperable to move said movable means into enunder uid pressure to thedotted line positions gagement therewith to prevent swinging movementthereof.

5. In a tractor, a drawbar mounted for free lateral swinging movement,and means for preventing such lateral movement including fluid operatedelements adapted to engage said drawbar.

6. In a tractor, a drawbar having relative longitudinal movement withrespect to said tractor, means for mounting said drawbar for freelateral swinging movement in one longitudinally displaced positionthereof, and means adapted to engage the side edges of said drawbarintermediate the ends thereof in another longitudinally displacedposition thereof to maintain said drawbar in a fixed position.

7. In a tractor, a drawbar having relative longitudinal movement withrespect to said tractor, means for mounting' said drawbar for freelateral swinging movement' in one longitudinally displaced positionthereof, means adapted to engage the sides of said drawbar in anotherlongitudinally displaced position thereof to maintain said drawbar in afixed position, and means yieldably resisting movement of said drawbarfrom either of said longitudinally displaced positions to the other.

8. In a tractor, a drawbar having relative longitudinal movement withrespect to said tractor, means for mounting said drawbar for freelateral swinging movement in one longitudinally displaced positionthereof, means adapted to en-l gage the sides of said drawbar in anotherlongitudinally displaced position thereof ,to maintain said drawbar in aiixed position, and means yieldably resisting movement of said drawbarfrom either of said longitudinally displaced positions to the other,said movement resisting means providing the pivot point for saiddrawbar.

9. In a tractor, a drawbar having relative longitudinal movement withrespect to said tractor,

means for mounting said drawbar for free lat'-v eral swinging movementin one longitudinally displaced position thereof, means adapted toengage the sides of said drawbar in another longitudinally displacedposition thereof to maintain said drawbar in a xed position, and meansyieldably, resisting movement of said drawbar from either of saidlongitudinally displaced positions to the other, said movement resistingmeans transmitting the draft forces from said tractor to said drawbar.

l0. In a tractor, drawbar means including an oscillatable member adaptedfor connection to a drawn vehicle, a member pivotally connected to saidoscillatable member, 'mounting' means for said member restricting saidmember to limited endwise movement, and means conditioned by endwisemovement of said member for preventing oscillation of said oscillatablemember.

11. In a tractor, drawbar means including an oscillatable member adaptedfor connection to a drawn vehicle, a member pivotally connected to saidoscillatable member, mounting means for 6 said member -restricting saidmember to limited endwise movement, and means conditioned by endwisemovement of said member for preventing oscillation of said oscillatablemember, said mounting means including means yieldably resisting endwisemovement of said members.

12. In a tractor, drawbar means including an4 oscillatable memberadapted for connection to a drawn vehicle, fluid pressure meansincluding a cylinder and a piston connected to said member.

uid pressure means intermediate the ends of said member includingauxiliary cylinders, and auxiliary pistons movable to contact saidmember, and conduit means connecting said ilrst cylinder to saidauxiliary cylinder whereby movement of said first piston controlsmovement of said auxiliary pistons to prevent oscillation of saidmember.

13. In a draft vehicle, a drawbar on said vehicle and adapted to beconnected to another vehicle, means mounting said drawbar for swingingmovement under tension forces and for preventing destructive impactswhen the forces on said drawbar change from tension to compression, andmeans for holding said drawbar against said swinging movement, saidholding means and said drawbar being mounted for relative movement withrespect to each other.

14. In a draft vehicle, a drawbar adapted at one end for-connection to adrawn vehicle, means mounting said drawbar for swinging movement underforces placing tension thereon including a pivotal connection at theother end of said drawbar, and means for preventingsuch movement underforces placing compression on said drawbar, including means engageablewith said drawbar intermediate the ends thereof for holding said drawbaralways in the same central fixed position irrespective of the swungposition of said drawbar when under tension forces.

15. In a tractor, a drawbar, mounting means therefor providing aswinging position for said drawbar, and a iixed position therefor, anduid operated means yieldably resisting movement of said drawbar fromeither of said positions to the other.

16. In a tractor, a drawbar, means for mounting said drawbar forswinging movement, normallyinactive means for preventing swingingmovement of said drawbar, said movement preventing means and saiddrawbar being mounted for relative movement, and means controllable byan operator for effecting said relative movement.

1'1. In a draft vehicle, a frame, a drawbar, means mounting said drawbaron said frame for pivotal andlongitudinal movement, said drawbar havingfree pivotal movement in a longitudinally displaced position thereofwhen under tension forces, opposite members movabiy mounted on saidframe, and actuating connections between said members and said drawbar;the longitudinal 5 loads placing compression on said drawbar.

19. In a draft vehicle, a frame, a drawbar, means mounting said drawbaron said frame for 20 swinging and longitudinal movement, opposedoutwardly diverging cam means on said frame, and means on said drawbarintermediate the ends thereof engageable with said cam means in alongitudinally displaced position of said drawbar to prevent saidswinging movement.

20. In a draft vehicle, a. frame, a drawbar, means mounting said drawbaron said frame for swinging and longitudinal movement, opposed outwardlydiverging cam means on said frame, means on said drawbar engageable withsaid cam means in a longitudinally displaced position of said drawbar toprevent said swinging movement, and shock-absorbing means for saidlongitudinal movement.

21. In a tractor, a rdrawbar, mounting means for said drawbar providingswinging movement thereof, and means mounted on said tractor fortranslational movement with respect to said tractor and with respect tosaid drawbar and selectively operable by the operator of said tractorindepedent of driving movement of said tractor for effecting saidtranslational movement and preventing said swinging movement of saiddrawv OSCAR L. STARR.

